Device for setting eyelets in flexible material.



- L. MUTHER.

DEVICE POB. SETTING EYELETS IN FLEXIBLE MATERIAL.

APPLICATION FILED JAN. 31, 1914. 1, 1 1 2,643. Patented 001s. 6, 1914.

LORENZ MUTHER, 0F WEST NEWTON, MASfSACH/U/SETTS.

I DEVICE FOR SETTING EYELETS IN FLEXIBLE MATERIL.

Specification of Letters Patent.

Patented 0ct. `6, 1914.

Application led January 31, 1914. Serial N o. 815,672.

To all whom t may concern:

Be it known that I, LonENz MUTHER, a citizen of the United States, residing in West Newton, county of Middlesex, Commonwealth of Massachusetts, have invented certain new and useful Improvements in Devices for Setting Eyelets in Flexible Material, oi' which the following is a specification, reference being had to the drawings accompanying the same and forming a part thereof.

My invention relates t adevice for setting eyelets or rivets in one or more of the layers of a plurality of layers of flexible material.

The objects of my invention are to provide a devicefor setting eyelets in one or more of the layers of a plurality of layers of liexible material so that the portion of the eyelet bent over by the setting device will come between two of the layers of material and so it will not show from the outside. rlhis type of eyelet setting is what is termed blind eyeleting. f y

In practice, 1 preferably use myeyelet setting device as a ineans to punch the hole and 'feed the material in which the eyelet is to be set.

As shown, my setting device may be -used in the type of eyelet setting machines illustruted in United States Letters Patent to P. ll. Glass, No. 686,928, granted November 1S), 1901. My improved setting device may also be used to set eyelets in the type of machine illustrated in United States Letters Patent to P. R. Glass, No. 673,815, issued May 7 1901, in which case my device serves to punch the hole and set the eyelet only.

'lhe improved eyelet setting device herein shown is equally well adapted t0 be used in any type of eyelet setting machine where separate punching and feeding devices are employed. 1n such cases my device will be used only to set the eyelet.

In the drawings accompanying this specification and forming a part thereof, the mechanism of an eyelet setting machine has not been shown, as my improved setting device is formed so as to be used with any of the machines now in general use, and particularly machines of the PR. Glass types hereinbefore referred to. The drawings accompanying this specification show my setting device when used with the anvil and positioning -point of the before-mentioned Glass Patent No. 686,928, and illustrates the anvil setting device in its several positions when punching the material, feeding it, positioning the eyelet, and setting it.

In the drawings-Figure 1 shows the setting device at the completion of the operation of punching the material, and the position of the anvil and positioning point with an eyelet in place ready to be presented to the work; Fig. 2 illustrates the position of my setting device, the anvil and positioning point when the setting device has partially ted the material forward to receive an eyelet; Fig. 3 shows the setting device, the anvil in position with an eyelet passed through the lower layer of material, the upper end of the eyelet being pressed against the lower side of the upper layer of material; Fig. l illustrates the position of the anvil and setting device, as well as the upper and lower layers of materials at the completion of the.

setting or riveting of the eyelet in the lower layer of material; Fig. 5 is a plan of a section of material showing the holes in the Lipper layer and the eyelets set in the lower layer, the eyelets being illustrated by dotted lines; Fig. 6 is a sectional elevation taken through Fig. 5 on line 6"(3; Fig. 7 shows my improved eyelet setting device when formed as a hollow punch, as well as a setting device, with the setting shoulder concave; Fig. 8 shows my setting device when formed as a hollow punch with the setting shoulder convex; Fig. 9 shows two thicknesses of flexible material in section, an eyelet and the eyelet setting device, with the end of the setting device pushed into the end of the eyelet sullicient to support it slightly and split it so that the end of the eyelet will come under the uppermost layer of material and push it upwardly as indicated; Fig. 10 shows a sectional elevation of the two thicknesses of material with the end of the eyelet spread somewhat more than in Fig. 9, and with the upper layer of the material shoved upwardly on the setting shoulder.

In my improved setting device, 1 is the shank of the setting device, which shank may be so formed as to secure it to the hereinbefore mentioned Glass eyelet sett-ing machines, or may be shaped to secure it in other types of eyelet setting machines; 2 is the punch and punch-block which in the Glass machine is provided with a slight projection 3 which serves to press the strips of material 4 and 5 upwardly upon the lower end of the setting device; 6 is the anvil upon which the head of the eyelet 7 rests, and 8 is a positioning point designed to catch and position the eyelet properly upon the anvil 6 as it isfed from the hopper.

In the operation of setting an eyelet .in the j material, the eyelet is pushed upwardly so that its barrel end passes outside the lower end of the eyelet setting device l as illustrated in F ig.. 3. ft will vbe noted in F ig.'7`

that the portion 9 of the eyelet setting device is slightly tapering sothat as the anvil the layer 5 of the material and press saidV layer upwardly and over the setting-shoulder l0, and thereafter said settingshoulder 10 contacts with the end of the eyelet and; bends it progressively outwardly until it assumes the position shown at ll, Fig. et, thus setting' the eyelet in the layer d rather than having it passthrough both layers of ma terial.

and 8 for the purpose of better illustrating its form and curvature.

width of the bent over portion of the eyelet after it is set. In practice, however, these unduly stretching it.

It will be readily understood that in cases where the lowermost layer of material 4L has been reinforced by permanently cementing a reinforcing strip upon its inner or upper surface, or otherwise securing the reinforcing strip to it, that the eyelet will pass through the lowermost layer as well as the reinforcin strip which may have been attached to 1t and be set on the upper surface of the reinforcing strip so that the turnedln practice thej shoulder is approximately kone-half the niiaeaa vover or riveted portion will come between the reinforcing strip and the llower surface of the upper layer 5. 'Y

l do not confine my invention to a setting device having ahole passing axially through it as shown, as my setting device may be used only for the purpose ofy setting eyelets and not for punching, as for instance in machines where the eyelet setting and punching devices are separate; e., where a device is used to punch the hole and feed the material 'and a separate device used to set the eyelet. Likewise, the eyelet setting device maycome upwardly from underneath the layers of material and the eyelet be fed downwardly, or the eyelet setting device may be operated horizontally with the layers of material in a vertical position.

ll do not wish to confine my invention to the exact form or the manner of using it as a punching', feeding and setting device, as it may be used for a setting device only, and this without departing from the spirit of my invention.

l. A device for setting eyelets in one of a plurality of layers of a flexible material, said device comprising an anvil and a coperating setting device having a projecting set- The shoulder` l0 is exaggerated in Figs. 7 y

ting-shoulder and a contracted portion above the setting-shoulder.

2. An eyelet setting device consisting of means for setting eyelets in one of the outside layers of a plurality of layers of material, comprising a lower anvil, an eyelet positioning device and an upper setting device having a slightly projected setting-shoulder and a contracted portion above the setting shoulder.

3. The combination of a punching and eyelet setting device for setting eyelets, in one or more of the layers of a plurality of layers of material, comprising a punch and a setting device having a projecting setting-shoulder and a contracted portion above the setting-shoulder.,

In testimony whereof, I have hereunto set my hand, in the presence of two subscribing witnesses, this the 30th day of January A. l).

. lliUBLENZ MUTHER. Witnesses R. P. ELLIOTT, H. M. KnLso. 

